title: Residential exposure to aircraft noise and hospital admissions for cardiovascular diseases: multi-airport retrospective study.
abstract: OBJECTIVE
  To investigate whether exposure to aircraft noise increases the risk of hospitalization for cardiovascular diseases in older people (≥ 65 years) residing near airports.
  
  
  METHODS
  Multi-airport retrospective study of approximately 6 million older people residing near airports in the United States. We superimposed contours of aircraft noise levels (in decibels, dB) for 89 airports for 2009 provided by the US Federal Aviation Administration on census block resolution population data to construct two exposure metrics applicable to zip code resolution health insurance data: population weighted noise within each zip code, and 90th centile of noise among populated census blocks within each zip code.
  
  
  METHODS
  2218 zip codes surrounding 89 airports in the contiguous states.
  
  
  METHODS
  6 027 363 people eligible to participate in the national medical insurance (Medicare) program (aged ≥ 65 years) residing near airports in 2009.
  
  
  METHODS
  Percentage increase in the hospitalization admission rate for cardiovascular disease associated with a 10 dB increase in aircraft noise, for each airport and on average across airports adjusted by individual level characteristics (age, sex, race), zip code level socioeconomic status and demographics, zip code level air pollution (fine particulate matter and ozone), and roadway density.
  
  
  RESULTS
  Averaged across all airports and using the 90th centile noise exposure metric, a zip code with 10 dB higher noise exposure had a 3.5% higher (95% confidence interval 0.2% to 7.0%) cardiovascular hospital admission rate, after controlling for covariates.
  
  
  CONCLUSIONS
  Despite limitations related to potential misclassification of exposure, we found a statistically significant association between exposure to aircraft noise and risk of hospitalization for cardiovascular diseases among older people living near airports.
authors.affiliation: NMR Group, Somerville, MA, USA.
authors.forename: Andrew W
authors.initials: AW
authors.lastname: Correia
authors.forename: Junenette L
authors.initials: JL
authors.lastname: Peters
authors.forename: Jonathan I
authors.initials: JI
authors.lastname: Levy
authors.forename: Steven
authors.initials: S
authors.lastname: Melly
authors.forename: Francesca
authors.initials: F
authors.lastname: Dominici
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000401:Aircraft; D059028:Airports; D002318:Cardiovascular Diseases / Q000453:epidemiology* / Q000209:etiology; D004781:Environmental Exposure / Q000009:adverse effects*; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data*; D006798:Housing; D006801:Humans; D008297:Male; D009017:Morbidity / Q000639:trends; D009624:Noise, Transportation / Q000009:adverse effects*; D012189:Retrospective Studies; D018570:Risk Assessment / Q000379:methods; D015996:Survival Rate / Q000639:trends; D014481:United States / Q000453:epidemiology